:root {
  --blue: #4b6f91;
  --blue-dark: #2c4c68;
  --blue-soft: #e8eff5;
  --ink: #202830;
  --muted: #68737d;
  --line: #bdcbd7;
  --paper: #fff;
  --canvas: #e9edf1;
  --success: #397a45;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 12px/1.5 Tahoma, Verdana, Arial, sans-serif;
}

a { color: var(--blue-dark); }
a:focus-visible { outline: 2px solid #e2b43d; outline-offset: 2px; }
h1, h2, h3, p { margin-top: 0; }

.page-shell {
  width: min(960px, calc(100% - 28px));
  margin: 28px auto;
  border: 1px solid #aebeca;
  background: var(--paper);
  box-shadow: 0 2px 10px rgba(44, 76, 104, .08);
}

.topbar {
  min-height: 48px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid #335673;
  background: var(--blue);
  color: #fff;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  text-decoration: none;
}

.wordmark-badge {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .72);
  background: rgba(255, 255, 255, .12);
  font-size: 11px;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-left: auto;
}

.topnav a {
  color: #f5f8fb;
  font-size: 11px;
  text-decoration: none;
}

.topnav a:hover { text-decoration: underline; }

.release-label {
  padding: 3px 6px;
  border: 1px solid rgba(255, 255, 255, .35);
  color: #e8f0f7;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .4px;
  white-space: nowrap;
}

.hero {
  padding: 42px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(290px, .8fr);
  gap: 48px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 10px;
  font-weight: bold;
  letter-spacing: 1px;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 16px;
  color: #263e53;
  font: normal 32px/1.18 Georgia, "Times New Roman", serif;
}

.lead {
  max-width: 530px;
  margin-bottom: 22px;
  color: #4d5963;
  font-size: 14px;
  line-height: 1.65;
}

.hero-actions,
.final-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 11px;
}

.button {
  display: inline-block;
  min-height: 34px;
  padding: 7px 14px;
  border: 1px solid #2d506e;
  background: linear-gradient(#6388aa, #4b7194);
  color: #fff;
  font-weight: bold;
  line-height: 18px;
  text-align: center;
  text-decoration: none;
  box-shadow: inset 0 1px rgba(255, 255, 255, .22);
}

.button:hover { background: #466d91; }
.text-link { padding: 7px 0; }

.hero-notes {
  margin: 19px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 15px;
  color: #66727b;
  font-size: 10px;
  list-style: none;
}

.hero-notes li::before {
  margin-right: 5px;
  color: var(--success);
  content: "✓";
  font-weight: bold;
}

.profile-card {
  border: 1px solid #b6c4d0;
  background: #f8fafb;
  box-shadow: 3px 3px 0 #e3e9ee;
}

.card-title {
  padding: 7px 9px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid #b6c4d0;
  background: var(--blue-soft);
  color: #375977;
  font-weight: bold;
}

.card-online { color: var(--success); font-size: 10px; font-weight: normal; }

.profile-body {
  padding: 12px;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
}

.avatar-placeholder {
  position: relative;
  width: 88px;
  height: 106px;
  overflow: hidden;
  border: 1px solid #bac5ce;
  background: #e5e8ea;
}

.avatar-head,
.avatar-body {
  position: absolute;
  left: 50%;
  display: block;
  transform: translateX(-50%);
  background: #afb6bb;
}

.avatar-head {
  top: 15px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
}

.avatar-body {
  bottom: -20px;
  width: 88px;
  height: 64px;
  border-radius: 44px 44px 0 0;
}

.profile-copy strong,
.profile-copy > span { display: block; }
.profile-copy strong { color: #294d6b; font-size: 13px; }
.profile-status { margin: 2px 0 9px; color: #66727b; font-size: 10px; }

dl { margin: 0; }
dl div { display: grid; grid-template-columns: 54px 1fr; gap: 4px; margin-top: 3px; }
dt { color: #6d7780; }
dd { margin: 0; }

.rating-preview {
  position: relative;
  height: 19px;
  margin: 0 12px 12px;
  overflow: hidden;
  border: 1px solid #8ea5b8;
  background: #e8eef3;
  color: #fff;
  font-size: 10px;
  line-height: 17px;
  text-align: center;
}

.rating-preview span {
  position: absolute;
  inset: 0 auto 0 0;
  background: #5a82a5;
}

.rating-preview b { position: relative; text-shadow: 0 1px #35536d; }

.card-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #d0dae2;
  background: #fff;
  color: #416484;
  font-size: 10px;
  text-align: center;
}

.card-links span { padding: 7px 3px; border-right: 1px solid #d0dae2; }
.card-links span:last-child { border-right: 0; }

.notice-line {
  padding: 10px 42px;
  display: flex;
  gap: 7px;
  border-bottom: 1px solid #ded3a1;
  background: #fff9dd;
  color: #665b31;
  font-size: 10px;
}

.features { border-bottom: 1px solid var(--line); }
.section-heading { padding: 30px 42px 20px; }
.section-heading h2,
.mobile-panel h2,
.status-panel h2,
.final-cta h2 {
  margin: 0;
  color: #2d4e69;
  font: normal 20px/1.3 Georgia, "Times New Roman", serif;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid #d4dde4;
}

.feature-grid article {
  min-height: 170px;
  padding: 20px;
  border-right: 1px solid #d4dde4;
  border-bottom: 1px solid #d4dde4;
}

.feature-grid article:nth-child(4n) { border-right: 0; }
.feature-grid article:nth-last-child(-n+4) { border-bottom: 0; }
.feature-number { color: #8c9ba7; font-size: 10px; }
.feature-grid h3 { margin: 9px 0 7px; color: #345775; font-size: 14px; }
.feature-grid p { margin: 0; color: #65717a; }

.mobile-panel {
  padding: 34px 42px;
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 42px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: #f8fafb;
}

.mobile-panel p:not(.eyebrow) { color: #59656e; font-size: 13px; }

.phone-preview {
  width: 190px;
  padding: 8px;
  border: 1px solid #7f929f;
  border-radius: 22px;
  background: #d9e2e9;
  box-shadow: 3px 3px 0 #c1ccd5;
}

.phone-speaker {
  width: 42px;
  height: 3px;
  margin: 2px auto 8px;
  background: #899aa6;
}

.phone-screen {
  min-height: 265px;
  padding: 9px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  border: 1px solid #aab9c5;
  background: #edf3f7;
}

.phone-header {
  margin: -9px -9px 10px;
  padding: 7px 8px;
  border-bottom: 1px solid #9fb1bf;
  background: #50789a;
  color: #fff;
  font-weight: bold;
}

.bubble {
  max-width: 88%;
  padding: 7px 8px;
  border: 1px solid #aebdc8;
  background: #fff;
  box-shadow: 1px 1px 0 #d9e0e5;
}

.bubble.outgoing { align-self: flex-end; background: #dfeaf3; }
.phone-input {
  margin-top: auto;
  padding: 7px 8px;
  display: flex;
  justify-content: space-between;
  border: 1px solid #aebdc8;
  background: #fff;
  color: #9099a0;
}
.phone-input b { color: var(--blue); }

.check-list { margin: 18px 0 0; padding: 0; list-style: none; }
.check-list li { margin-top: 7px; color: #4f5f6b; }
.check-list li::before { margin-right: 7px; color: var(--success); content: "✓"; font-weight: bold; }

.how-to-start { border-bottom: 1px solid var(--line); }
.steps {
  margin: 0;
  padding: 0 42px 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  list-style: none;
}

.steps li {
  min-width: 0;
  padding: 13px;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  border: 1px solid #c7d3dc;
  background: #f8fafb;
}

.steps li > span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid #365b7a;
  background: var(--blue);
  color: #fff;
  font-weight: bold;
}

.steps strong { color: #345775; }
.steps p { margin: 4px 0 0; color: #66727b; }

.status-panel {
  padding: 32px 42px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  background: #f8fafb;
  border-bottom: 1px solid var(--line);
}

.status-panel p:last-child { margin: 9px 0 0; color: #59656e; }
.status-list { margin: 0; padding: 0; border: 1px solid #c8d3dc; background: #fff; list-style: none; }
.status-list li { padding: 8px 10px; display: grid; grid-template-columns: 22px 1fr; gap: 7px; border-bottom: 1px solid #e0e6eb; }
.status-list li:last-child { border-bottom: 0; }
.status-mark { color: var(--success); font-weight: bold; }
.status-list strong, .status-list small { display: block; }
.status-list strong { color: #365875; font-size: 11px; }
.status-list small { margin-top: 1px; color: #6c7780; font-size: 10px; }

.final-cta {
  padding: 28px 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: #fff9dd;
}

.final-cta p:last-child { margin: 7px 0 0; color: #665f47; }
.final-actions { flex: 0 0 auto; }

footer {
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid #fff;
  background: #eef2f5;
  color: #747d84;
  font-size: 10px;
}

@media (max-width: 760px) {
  .page-shell { width: calc(100% - 12px); margin: 6px auto; }
  .topbar { flex-wrap: wrap; }
  .topnav { order: 3; width: 100%; justify-content: center; margin: 0; padding-top: 6px; border-top: 1px solid rgba(255, 255, 255, .2); }
  .release-label { margin-left: auto; }
  .hero { padding: 28px 20px; grid-template-columns: 1fr; gap: 28px; }
  .notice-line { padding: 10px 20px; }
  .section-heading { padding: 26px 20px 17px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid article:nth-child(4n) { border-right: 1px solid #d4dde4; }
  .feature-grid article:nth-child(2n) { border-right: 0; }
  .feature-grid article:nth-last-child(-n+4) { border-bottom: 1px solid #d4dde4; }
  .feature-grid article:nth-last-child(-n+2) { border-bottom: 0; }
  .mobile-panel { padding: 28px 20px; grid-template-columns: 190px 1fr; gap: 24px; }
  .steps { padding: 0 20px 28px; grid-template-columns: 1fr; }
  .status-panel { padding: 28px 20px; grid-template-columns: 1fr; gap: 24px; }
  .final-cta { padding: 25px 20px; }
}

@media (max-width: 540px) {
  h1 { font-size: 25px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .notice-line { flex-direction: column; gap: 2px; }
  .mobile-panel { grid-template-columns: 1fr; }
  .phone-preview { margin: 0 auto; }
  .final-cta { align-items: stretch; flex-direction: column; gap: 18px; }
  .final-actions { align-items: stretch; flex-direction: column; }
  .final-actions .button { width: 100%; }
  footer { flex-direction: column; gap: 3px; }
}

@media (max-width: 390px) {
  .topbar { gap: 10px; }
  .release-label { font-size: 9px; }
  .topnav { justify-content: space-between; gap: 8px; }
  .profile-body { grid-template-columns: 78px 1fr; }
  .avatar-placeholder { width: 78px; height: 96px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article,
  .feature-grid article:nth-child(2n),
  .feature-grid article:nth-child(4n),
  .feature-grid article:nth-last-child(-n+2) { min-height: 0; border-right: 0; border-bottom: 1px solid #d4dde4; }
  .feature-grid article:last-child { border-bottom: 0; }
  .hero-notes { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}